Practice Pressure and Fluids – GK Quiz with Answers – Level 3

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Question 4

Match List-I with List-II.

List-I (Example)	List-II (Explanation)
A. Sharp edge of a knife	1. Archimedes' principle
B. Big flat feet of a camel	2. Atmospheric pressure
C. Rubber sucker sticking to a surface	3. Smaller area gives more pressure
D. Lactometer	4. Larger area gives less pressure

Select the correct answer using the codes given below.

Question 5
Consider the following statements about pressure in liquids:
1. A liquid exerts pressure only on the base of its container, not on the walls.
2. At the same depth, a liquid exerts equal pressure in all directions.
Which of the statements given above is/are correct?
Question 6
According to Archimedes' principle, the upthrust on a body wholly or partly immersed in a fluid is equal to the:
Question 7
Consider the following statements about applications of buoyancy:
1. A lactometer is used to check the purity of milk.
2. A hydrometer is used to measure the density of liquids.
3. A lactometer works on Pascal's principle.
Which of the statements given above is/are correct?
Question 8
Consider the following statements about density:
1. Density is defined as volume per unit mass.
2. Relative density is the density of a substance divided by the density of water.
3. An iron nail sinks in water because its density is more than that of water.
Which of the statements given above is/are correct?
Question 9
Consider the following statements about thrust, area and pressure:
1. A knife is given a sharp edge so that the small area of contact produces more pressure.
2. Trucks have wide tyres so that a larger area of contact produces less pressure on the road.
3. A camel walks easily on sand because its big flat feet spread its weight over a larger area.
Which of the statements given above is/are correct?

Match List-I with List-II.

List-I (Quantity)	List-II (Equal to)
A. Pressure	1. Weight of the fluid displaced
B. Density	2. Thrust divided by area
C. Relative density	3. Density of substance divided by density of water
D. Upthrust	4. Mass divided by volume

Select the correct answer using the codes given below.